An experimental device is constructed for measuring the density and liquidus temperature of molten fluorides by using the Archimedean and cooling curve methods respectively.Its operation is tested by measuring the den...An experimental device is constructed for measuring the density and liquidus temperature of molten fluorides by using the Archimedean and cooling curve methods respectively.Its operation is tested by measuring the density and liquidus temperature of NaCl salt.The accuracy of the liquidus temperature measurement is about±1 K.The density of NaCl measured is in good agreement with the widely recognized data and the deviation is less than 0.2%.The liquidus temperature and density of a typical heat transfer fluoride LiF-NaF-KF(46.5-11.5-42mol%)are investigated.展开更多
文摘An experimental device is constructed for measuring the density and liquidus temperature of molten fluorides by using the Archimedean and cooling curve methods respectively.Its operation is tested by measuring the density and liquidus temperature of NaCl salt.The accuracy of the liquidus temperature measurement is about±1 K.The density of NaCl measured is in good agreement with the widely recognized data and the deviation is less than 0.2%.The liquidus temperature and density of a typical heat transfer fluoride LiF-NaF-KF(46.5-11.5-42mol%)are investigated.
文摘熔盐是一种优异的传热介质。热物性数据是熔盐传热应用过程中的关键基础数据。按照制定的样品制备规范、样品测试操作流程和数据处理分析方法,采用差示扫描量热仪(Differential Scanning Calorimetry,DSC)、自主研制的阿基米德法密度仪和旋转柱体式粘度仪、改进的激光闪光法导热仪对FLi Na K、Clo Kmag和HTS熔盐的熔点、比热容、密度、导热系数、粘度系数进行了实验测量和数据评估。首次系统地提供了FLi Na K和HTS熔盐在熔点以上80 K温区的粘度系数、Clo Kmag盐的关键热物性数据。为这些熔盐的热工水力设计分析提供了准确可靠的基础数据。
